Nozzle for humidifying apparatus



Mar. 3. 1,925.

G. w. DARcY NOZZL FOR HUMIDIFYING APPARATUS f Filed Jan. 7, 1920v Patented Mar. 3, 1925.

UNIT-ED -STA GEORGE W. DAnor, or BOSTON, MASSACHUSETTS.

Tes "PATENT OFFICE.l

` `Nozznn non HUMIDIFYING APPARATUS.

Application filed January 7, 1920. Serial No. 350,031.

lowing description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention is an improvement inv nozzles of the tube-orifice type shown and described in my Patent No. 1,302,515. `dated M'ay 6, 1919, for method and appara-tus for humidifying air.

The object of the invention is to provide a dripless nozzle of simple construction that can be used with systems employing either compressed air or steam as the diffusing ine-r dium, and that will give a wider distribution of vapor laterally so as to increase the area of diffusion from the nozzle.

Une 'feature of the invention consists in thinning` the walls of the tube at the orifice; a second feature in making a recess in the inner wall of the tube surrounding the orifice; and also in making the tube in two concentrically arranged parts, one of which has a hole or recess already referred to and the other a thinned portion consisting of the sleeve only disposed opposite the hole and thro-ugh which the orifice is cut.

In order` that the construction and opera.- t-ion of the invention may be understood, I have illustrated it in the accompanying drawing in a. preferred form thatexperience has shown to be well adapted to the usual conditions of use in mill buildings.

In the drawings, Fig. 1 is a side view of a nozzle in the position in which it is intended to be used;

Fig. 2 is a vertical-section of the sanie on the line 2-2 in Fig. 1; and

Fig. 3 is a. view similar to Fig. 1` with the outer sleeve removed.

The nozzle shown in the drawings consists of two parts, a straight pipe 11 which is adapted to be connected at its upper end to the supply pipe by a socket12, and an aperturedsleeve 13 which is slipped. onover the lower end of the pipe 11 and secured by brazing, soldering, or other suitableV means.

The pipe 11 has two oppositely vdisposed Vcurvilinear orifices or holes y14 in its side walls at a short distance from its lower end;

and the sleeve 13'vhas two elongated apertures 15 through its side walls near its upper end, thehorifices being located opposite the holes 14 in the pipe in the asse-mbled nozzle.

The portion of the sleeve containing the Vorifices* has -alip or4 flange 16 surrounding the sleeve immediately below the lower edges of the orifices. The lower ends of the pipe andsleeve are closed by a screw cap 17.

The orifices 15 need not be restricted to two in number, and need not be dialnet rically opposed; but it is found that two or more comparatively narrow orifices in a thin walled tube are more effective and give a more uniform distribution of vapor over a vlarge area than wider orifices in a tube having thicker walls.

The portion of the sleeve edge overlying the edge ofthe orifice 14 provides a. baliie plate, as it were, against the inner side of which part of the circular stream of mingled air and water is projected as it leaves the orifice 14. v

The result is that the overlying edge.

about the elongated aperture 15 acting as' a baffle plate retards the flow of air and water somewhat causing a further and more complete coniingling thereof, with the result that a. finer and very much more completely mixed or diffused stream of vapor is projected into the room with very much improved and more widely extended results.

Vith this construction I am able to humidify to a` satisfactory degree a very much greater number of cubic feet yof air than can be done by any other construction of which I have knowledge. A curvilinear hole or recess will not do it and a rectangular aperture alone willV not do it; but the combination of the 'two with the one overlying the other does produce the result above described. This device is far and away more eficient than any other form of nozzle kno-wn to me.

`It may be possible to vary the construction of the present embodiment of my inventionvwithout departing from the spirit of the invention or the scope o-f the claims..

I claim the following as my invention:

1. A nozzle for humidifying apparatus comprising a tube having a closed lower end and a curvilinear orifice in its side wall above the end, a sleeve about the tube, an aperture in the sleeve of less width than the corresponding dimension of the aperture in the tube, whereby the overlying edge of the aperture in the sleeve acts asa baille plate to disturb the co-iningled stream of air and Water as it leaves the orifice.

2. A nozzle Jfor humiditying apparatus comprising a` tube having a closed lower end and an orifice in its side Wall above its end, and a sleeve about the tube, an aperture in the sleeve Sina-ller than and registering with the orifice in the tube, the overlying edge of the aperture actingto ballie the stream of air and Water `to dissipate the same and more thoroughly diffuse the vapor throughout the space adjacent the nozzle.

3. A nozzle for humidifying apparatus comprising a tubular member having a curvilinear' opening in its side Wall, a sleeve over the tube -With a circumferential slit therein registering With said opening and of less Width than the corresponding dimension of the opening whereby the overlying edge ot the slit acts as a battle plate against which the stream of air and Water is projected `trom the curvilinear opening with resulting` more thorough diffusion of the vapor throughout the space adjacent the nozzle.

In testimony whereof7 have signed my name to this specification.

GEORGE WV. DARCY. 

